System and method for semi-factory artificial batch production of 1cm young crayfish

Abstract

The invention discloses a semi-factory artificial batch production system and method for 1cm water fry of crayfish, and the system comprises a greenhouse cultivation module which comprises a greenhouse unit, a breeding unit and a catching unit, the breeding unit is arranged in the greenhouse unit, the catching unit is arranged in the breeding unit, and the catching unit is used for intensively catching the crayfish carrying eggs; the centralized incubation module comprises a plurality of centralized incubation units, a plurality of independent incubation assemblies are arranged in the centralized incubation units, and the incubation assemblies are used for incubating shrimp seeds; a breeding pond for egg-carrying crayfishes, a greenhouse and an artificial nest are arranged in the greenhouse module, a bottom net is arranged at the bottom of the breeding pond to force the egg-carrying crayfishes to enter the artificial nest, the artificial nest is used for transferring the egg-carrying crayfishes into the centralized hatching module in batches for hatching and breeding, and the survival rate of crayfish fry can be increased; in addition, batch catching and transferring of the water spray seedlings are facilitated, and the method is suitable for large-scale batch breeding.

Description

Technical Field

[0001] The present invention belongs to the technical field of crayfish breeding, and in particular relates to a system and method for semi-factory artificial batch production of crayfish 1 cm water splash seedlings. Background Art

[0002] Crayfish is almost the only category in the entire aquatic industry that has not solved the problem of specialized seed breeding. For more than a decade, the seed problem of crayfish has been a bottleneck that has plagued my country's crayfish farming industry. There have always been calls from experts in scientific research institutions to carry out specialized or factory-based research on "crayfish seed breeding". However, the industry believes that crayfish have strong reproductive capacity and there is still surplus self-supply, so they have not taken it seriously. It seems that the basic research on specialized crayfish breeding is not urgent. In fact, after years of industrial transformation and upgrading, all parts of the country have realized that specialized basic research on crayfish seed breeding is a difficult area. "Artificial breeding seed" is that crayfish seed farms select excellent parent shrimps according to the technical requirements of crayfish breeding, artificially induce batch breeding of crayfish, and can provide shrimp seedlings of different specifications of 1cm, 2cm and 3cm according to the needs of farmers. The seedlings are of excellent quality, fast growth, neat specifications, large quantity, early emergence, and controllable emergence time.

[0003] In my country, the crayfish farming industry is affected by many factors, such as the short farming history, insufficient in-depth farming research, and the habits and concepts of farmers. The breeding of seedlings mainly relies on the release of broodstock and 3cm juvenile shrimp, and a very small amount of artificially bred 1cm juvenile shrimp. The 3cm shrimp seedlings can only be caught in large quantities in March, April and May after the beginning of spring. Spring is the growing season for crayfish. In spring, fishing and releasing are time-consuming. In addition, crayfish have an adaptation period for fishing and releasing operations, which greatly shortens the growth period of crayfish and has a great impact on the growth of crayfish. Moreover, the release of shrimp seedlings in spring affects the survival rate due to the low tolerance of the young shrimp, resulting in the yield and specifications not meeting expectations. This farming method has a low survival rate of shrimp seedlings, low crayfish yield, high mortality rate, and slow growth, which is not suitable for large-scale farming.

[0004] Therefore, the natural seedling supply capacity in spring is too low to meet the demand for large-scale aquaculture seedlings. Only through artificial breeding and the release of brood shrimp can the seedlings needed for large-scale aquaculture of crayfish be solved, and the aquaculture industry of crayfish can be promoted faster and more effectively. In order to achieve a stable supply of crayfish seedlings with low temperature water cooling in early spring and high temperature and strong light in summer, it is particularly important to ensure stable shrimp seedling quality and survival rate in pond transfer. Summary of the invention

[0005] The purpose of the present invention is to provide a system and method for semi-factory artificial batch production of 1 cm crayfish water flower seedlings, which can produce crayfish water flower seedlings in batches and on a large scale through greenhouse cultivation modules and centralized hatching modules, thereby meeting the demand for seedlings of crayfish that are put on the market at different times and for large-scale breeding in more remote areas.

[0006] The present invention is achieved through the following technical solutions: A system for semi-factory artificial batch production of 1cm crayfish seedlings, comprising: A greenhouse cultivation module, the greenhouse cultivation module comprises a greenhouse unit, a breeding unit and a capture unit, the breeding unit is arranged in the greenhouse unit, the capture unit is arranged in the breeding unit, and the capture unit is used to centrally capture crayfish carrying eggs; A centralized hatching module, wherein the centralized hatching module comprises a plurality of centralized hatching units, wherein the centralized hatching units are provided with a plurality of independent hatching components, and the hatching components are used for hatching shrimp fry.

[0007] Furthermore, the greenhouse unit includes a greenhouse shed, a ventilation assembly is arranged on the side of the greenhouse, the ventilation assembly includes a narrow tube ventilation plate and a fan group, the narrow tube ventilation plate and the fan group are arranged opposite to each other, and a plurality of funnel-shaped ventilation tubes are arranged on the narrow tube ventilation plate.

[0008] Furthermore, the breeding unit includes a breeding pond, which is arranged in a greenhouse. The bottom and side walls of the breeding pond are both provided with a bottom net, and the aperture of the bottom net is 1 cm.

[0009] Furthermore, a plurality of water purification components are provided in the breeding pond, and the water purification components include a box body, and the box body floats in the breeding pond, and the box body is used to plant plants for purifying water quality.

[0010] Furthermore, the capture unit includes a plurality of artificial nests, one side of the artificial nests is open, and a plurality of independent chambers are arranged in the artificial nests.

[0011] Furthermore, the centralized incubation unit includes a centralized incubation pool, in which a plurality of incubation components are arranged, and the incubation components include a structural frame, and mesh cloth is arranged at the bottom and around the structural frame, and the pore size of the mesh cloth is 0.25 mm; the mesh cloth at the bottom of the structural frame and the bottom of the incubation pool are spaced 20-30 cm apart, and adjacent structural frame bodies are spaced 1 m apart; and anti-escape films are arranged around the top of the structural frame, and the width of the anti-escape film is 10 cm.

[0012] Furthermore, a plurality of hatching cages are provided in the hatching assembly, and the hatching cages include support frames, and air bags are provided on the support frames on the sides of the hatching cages; meshes are provided around and on the bottom of the support frames, and the aperture of the mesh at the bottom of the hatching cages is 2 mm, and the aperture of the mesh on the sides of the hatching cages is 1-1.2 cm; plastic films are provided around the top of the hatching cages, and the width of the plastic films is 20 cm.

[0013] A method for semi-factory artificial batch production of crayfish 1 cm water splash seedlings, wherein the crayfish water splash seedlings are cultivated by the semi-factory artificial batch production of crayfish 1 cm water splash seedlings system, comprising the following steps: S1: Cultivate the parent shrimps in the breeding pond, and after they are incubated with eggs, they are centrally captured through artificial nests and transferred to centralized hatching ponds; S2: The crayfish carrying eggs are placed in the hatching cages of the hatching components in the centralized hatching pool for batch breeding; S3: oxygenating and shading the centralized hatching pond until the crayfish seedlings are separated from the body; S4: The separated crayfish are driven away, captured and transferred to a special breeding pond for crayfish seedlings for breeding.

[0014] Furthermore, the specific operating steps for oxygenating and shading the centralized incubation pool are as follows: a plurality of nano oxygenation tubes are arranged at the bottom of the centralized incubation pool, and each nano oxygenation tube is arranged in a disc shape and connected to an aerator; a sunshade cloth is arranged on the top of the centralized incubation pool, and the sunshade cloth is used to shade the centralized incubation pool.

[0015] Furthermore, the specific operation method for driving out and collectively capturing the in vitro crayfish is as follows: the in vitro crayfish seedlings are driven out of the hatching cage through the mesh pores on the side of the hatching cage, so that they enter the structural frame, one end of the structural frame provided with the mesh is lifted, and the crayfish seedlings are driven to one end of the structural frame for collective capture and transferred to a special breeding pond for seedlings for breeding.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1) In the present invention, the egg-carrying crayfish are systematically bred through a greenhouse cultivation module and a centralized hatching module. A breeding pond, a greenhouse and an artificial nest for the egg-carrying crayfish are arranged in the greenhouse module. A bottom net is arranged at the bottom of the breeding pond to force the egg-carrying crayfish to drill into the artificial nest. The egg-carrying crayfish are transferred in batches to the centralized hatching module by using the artificial nest for hatching and seedling raising. This can improve the survival rate of the crayfish water flower seedlings, facilitate the batch capture and transfer of the water flower seedlings, and is suitable for large-scale batch breeding.

[0017] 2) In the present invention, a plurality of centralized hatching units are arranged in the centralized hatching module, a plurality of independent hatching components are arranged in the centralized hatching units, and relatively independent hatching cages are arranged in the hatching components. The crayfish with eggs are put into a plurality of independent hatching cages in batches for batch feeding and management. This can avoid the situation where the crayfish with eggs are eaten by the big shrimps due to improper feeding, and is beneficial to the hatching and survival of the crayfish water splash seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The present invention is a logic block diagram of a system for semi-factory artificial batch production of 1 cm crayfish seedlings.

[0020] Figure 2 It is a schematic diagram of the structure of the greenhouse and the culture pond in the present invention.

[0021] Figure 3 It is a structural schematic diagram of the centralized incubation pool in the present invention.

[0022] Among them: 1-breeding pond, 2-greenhouse, 3-narrow tube ventilation plate, 31-ventilation pipe, 4-fan group, 5-bottom net, 6-box, 7-artificial nest, 8-centralized hatching pool, 9-structural frame, 10-hatching cage, 11-air bag, 12-hatching nest. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0024] Embodiment 1: A semi-factory artificial batch production system for 1cm crayfish seedlings, such as Figure 1 and Figure 2 As shown, including: A greenhouse cultivation module, the greenhouse cultivation module comprises a greenhouse unit, a breeding unit and a capture unit, the breeding unit is arranged in the greenhouse unit, the capture unit is arranged in the breeding unit, and the capture unit is used to centrally capture crayfish carrying eggs; A centralized hatching module, wherein the centralized hatching module includes a plurality of centralized hatching units, wherein the centralized hatching units are provided with a plurality of independent hatching components, and the hatching components are used to hatch shrimp fry; The greenhouse cultivation module includes a greenhouse unit, a breeding unit and a capturing unit. The breeding unit is arranged in the greenhouse unit. The crayfish with eggs are cultured in the breeding unit. After they are carrying eggs, they will enter the capturing unit. The capturing unit is arranged in the breeding unit. The crayfish with eggs can be collectively captured by the capturing unit and transferred to the centralized hatching module for hatching shrimp fry. The centralized hatching module includes a plurality of centralized hatching units, each of which is independently arranged. A plurality of independent hatching components are arranged in the centralized hatching unit. The crayfish with eggs are put into the hatching components for hatching shrimp fry. Finally, the shrimp fry are uniformly batch-fished and transferred to the special breeding pond 1 for water flower fry for breeding.

[0025] The greenhouse unit includes a greenhouse 2, and ventilation components are arranged on the left and right sides of the greenhouse 2. The ventilation components include a narrow tube ventilation plate 3 on one side and a fan group 4 on the other side. The narrow tube ventilation plate 3 and the fan group 4 are arranged opposite to each other. A plurality of funnel-shaped ventilation pipes 31 are arranged on the narrow tube ventilation plate 3. The diameter of the ventilation pipe 31 at the outer end of the greenhouse 2 is larger than the diameter at the inner end of the greenhouse 2. The fan group 4 blows air toward the outside of the greenhouse 2, generating a negative pressure effect in the greenhouse 2, thereby forcing the airflow to enter the greenhouse 2 along the ventilation pipe 31 on the narrow tube ventilation plate 3, forming a narrow tube effect, which can adjust the temperature in the greenhouse 2, circulate the air in the greenhouse 2, and save energy. The breeding unit comprises a breeding pond 1, which is arranged in a greenhouse 2, and a bottom net 5 is arranged at the bottom and side walls of the breeding pond 1; the angle between the four side walls of the breeding pond 1 and its bottom is 30°, the aperture of the bottom net 5 is 1 cm, and the bottom net is a sinking dark polyethylene fishing net or a nylon fishing net; crayfish carrying eggs usually like to dig holes and enter the holes for breeding. After the bottom net 5 with an aperture of 1 cm is arranged, the crayfish carrying eggs can be prevented from digging holes, and they are forced to drill into the human nest for breeding, so that the crayfish carrying eggs can be captured in batches through the artificial nest 7 for transfer; at the same time, a plurality of water purification components are arranged in the breeding pond 1, and the water purification components include a box body 6, and a foam piece is arranged on the box body 6, and the foam piece makes the box body 6 float in the breeding pond 1, and the box body 6 is used to plant plants for purifying water quality, and can play a role of shading and cooling. The area covered by the green plants in the box body 6 on the water surface of the breeding pond 1 is 50% of the water surface area of ​​the breeding pond 1; The capture unit includes several artificial nests 7, one side of the artificial nest 7 is an open structure, and the other five sides are closed structures. Multiple independent chambers are set up in the artificial nest 7 through honeycomb partitions, each of which can accommodate multiple crayfish with eggs. Multiple fixings are set at the bottom of the artificial nest 7, and the fixings can be inserted into the bottom of the breeding pond 1 to keep it stable in the breeding pond 1.

[0026] Embodiment 2: Based on the above embodiment, this embodiment further defines the centralized incubation unit, such as Figure 3 As shown, the crayfish with eggs are captured through artificial nests 7 and then put into a centralized hatching unit in batches for centralized hatching. The centralized hatching unit includes a centralized hatching pool 8, in which a plurality of hatching components are arranged, and the hatching components include a structural skeleton 9, and the two ends of the structural skeleton 9 are respectively connected and fixed with the edges of the centralized hatching pool 8 by plugging and matching. The bottom and surrounding of the structural skeleton 9 are provided with mesh cloth, and the pore diameter of the mesh cloth is 0.25mm. In addition, an escape-proof film is arranged around the top of the structural skeleton 9, and the width of the escape-proof film is 10cm, which can prevent the crayfish seedlings from escaping; the mesh cloth at the bottom of the structural skeleton 9 is 20-30cm away from the bottom of the hatching pool, and the adjacent structural skeletons 9 are spaced 1m apart; a plurality of hatching net boxes 10 are arranged in the structural skeleton 9, and the hatching net boxes 10 include a support frame, and the support frame on the side of the hatching net box 10 is provided with an air bag 11, so that the hatching net box 10 can The hatching net box 10 is able to float in the structural frame 9 of the centralized hatching pool 8. The top of the hatching net box is provided with a plastic film with a width of 20 cm to prevent the crayfish carrying eggs from escaping. The support frame is provided with mesh sheets around and at the bottom. The aperture of the mesh sheet at the bottom of the hatching net box 10 is 2 mm, and the aperture of the mesh sheet on the side of the hatching net box 10 is 1-1.2 cm. The hatching net box 10 is also provided with a plurality of hatching nests 12. The crayfish carrying eggs can drill into the hatching nests 12 for hatching. When the crayfish water flower seedlings are separated from the body, they can freely enter and exit the hatching net box 10 through the mesh sheet on the side of the hatching net box 10 and can enter the structural frame 9. The bottom and surrounding of the structural frame 9 are provided with a mesh cloth with an aperture of 0.25 mm to prevent the crayfish from escaping from the structural frame 9. When fishing, the crayfish water flower seedlings are first driven from the hatching net box 10 to the structural frame 9, and then centralized fishing is carried out in the structural frame 9. The other parts of this embodiment are the same as the above-mentioned embodiments, and will not be repeated here.

[0027] Embodiment 3: A method for semi-factory artificial batch production of crayfish 1 cm water splash seedlings, wherein the crayfish water splash seedlings are cultivated by the semi-factory artificial batch production of crayfish 1 cm water splash seedlings system, comprising the following steps: S1: breeding shrimps in the breeding pond 1, catching them in artificial nests 7 after they are incubated with eggs and transferring them to the centralized hatching pond 8; S2: The crayfish carrying eggs are placed in the hatching cages 10 of the hatching assembly in the centralized hatching pool 8 for batch breeding; S3: performing oxygenation and shading treatment on the centralized hatching pool 8, and waiting for the crayfish water flower seedlings to be separated from the body; S4: driving away and collectively capturing the isolated crayfish and transferring them to a special breeding pond 1 for crayfish seedlings for breeding; In order to increase the survival rate of the water flower seedlings in the centralized incubation pool 8, an inlet valve and an outlet valve are respectively provided at the left and right ends of the centralized incubation pool 8 to facilitate water change. At the same time, a plurality of nano oxygenation tubes are provided at the bottom of the centralized incubation pool 8, and each nano oxygenation tube is provided in a disc shape to improve the oxygenation effect. The nano oxygenation tube is connected to an external aerator to add oxygen to the centralized incubation pool 8. At the same time, floating aquatic plants such as water hyacinth are placed on the surface of the water in each centralized incubation pool 8 to further purify the water quality, shade, supplement nutrition, and provide a habitat. In addition, it also has the function of lowering the water temperature in high temperature seasons; a sunshade is set on the top of the centralized hatching pool 8, and the sunshade is used to shade the centralized hatching pool 8 to prevent the water flower seedlings from dying due to overly high temperature; when the crayfish water flower seedlings are captured in a centralized manner, the in vitro crayfish water flower seedlings are driven away from the hatching net cage 10 through the mesh pores on the side of the hatching net cage 10, so that they enter the structural frame 9, and then one end of the structural frame 9 provided with the mesh can be lifted, and the crayfish water flower seedlings can be driven to the other end of the structural frame 9 for centralized capture and transferred to the special breeding pond 1 for water flower seedlings for breeding.

[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship commonly placed when the product of the invention is used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A system for semi-factory artificial batch production of 1 cm crayfish seedlings, characterized in that: include: A greenhouse cultivation module, the greenhouse cultivation module comprises a greenhouse unit, a breeding unit and a capture unit, the breeding unit is arranged in the greenhouse unit, the capture unit is arranged in the breeding unit, and the capture unit is used to centrally capture crayfish carrying eggs; A centralized hatching module, wherein the centralized hatching module comprises a plurality of centralized hatching units, wherein the centralized hatching units are provided with a plurality of independent hatching components, and the hatching components are used for hatching shrimp fry.

2. The system for semi-factory artificial batch production of 1 cm crayfish seedlings as claimed in claim 1, characterized in that: The greenhouse unit includes a greenhouse shed, a ventilation assembly is arranged on the side of the greenhouse shed, and the ventilation assembly includes a narrow tube ventilation plate and a fan group. The narrow tube ventilation plate and the fan group are arranged opposite to each other, and a plurality of funnel-shaped ventilation tubes are arranged on the narrow tube ventilation plate.

3. The system for semi-factory artificial batch production of 1 cm crayfish seedlings as claimed in claim 2, characterized in that: The breeding unit comprises a breeding pond, which is arranged in a greenhouse. The bottom and side walls of the breeding pond are both provided with bottom nets, and the aperture of the bottom net is 1 cm.

4. The system for semi-factory artificial batch production of 1 cm crayfish seedlings as claimed in claim 2, characterized in that: A plurality of water purification components are arranged in the breeding pond, and the water purification components include a box body, and the box body floats in the breeding pond, and the box body is used for planting plants for purifying water.

5. The system for semi-factory artificial batch production of 1 cm crayfish seedlings as claimed in claim 1, characterized in that: The capture unit comprises a plurality of artificial nests, one side of the artificial nests is open, and a plurality of independent chambers are arranged in the artificial nests.

6. The system for semi-factory artificial batch production of 1 cm crayfish seedlings as claimed in claim 1, characterized in that: The centralized incubation unit comprises a centralized incubation pool, in which a plurality of incubation components are arranged, and the incubation components comprise a structural frame, and mesh cloth is arranged at the bottom and around the structural frame, and the pore size of the mesh cloth is 0.25 mm; the mesh cloth at the bottom of the structural frame is 20-30 cm away from the bottom of the incubation pool, and adjacent structural frames are spaced 1 m apart; and anti-escape films are arranged around the top of the structural frame, and the width of the anti-escape films is 10 cm.

7. The system for semi-factory artificial batch production of 1 cm crayfish seedlings as claimed in claim 6, characterized in that: The hatching assembly is provided with a plurality of hatching net boxes, and the hatching net boxes include a support frame, and an air bag is provided on the support frame on the side of the hatching net box; mesh sheets are provided around and on the bottom of the support frame, the pore size of the mesh sheet at the bottom of the hatching net box is 2mm, and the pore size of the mesh sheet on the side of the hatching net box is 1-1.2cm; plastic films are provided around the top of the hatching net box, and the width of the plastic film is 20cm.

8. A method for semi-factory artificial batch production of 1 cm crayfish seedlings, characterized in that: Cultivating crayfish water splash seedlings by using the system for semi-factory artificial batch production of crayfish 1 cm water splash seedlings as described in any one of claims 1 to 7 comprises the following steps: S1: Cultivate the parent shrimps in the breeding pond, and after they are incubated with eggs, they are centrally captured through artificial nests and transferred to centralized hatching ponds; S2: The crayfish carrying eggs are placed in the hatching cages of the hatching components in the centralized hatching pool for batch breeding; S3: oxygenating and shading the centralized hatching pond until the crayfish seedlings are separated from the body; S4: The separated crayfish are driven away, captured and transferred to a special breeding pond for crayfish seedlings for breeding.

9. The method for semi-industrialized artificial batch production of 1 cm crayfish seedlings as claimed in claim 8, characterized in that: The specific operating steps for oxygenating and shading the centralized incubation pool are as follows: a plurality of nano oxygenation tubes are arranged at the bottom of the centralized incubation pool, and each nano oxygenation tube is arranged in a disc shape and connected to an aerator; a sunshade is arranged on the top of the centralized incubation pool, and the sunshade is used to shade the centralized incubation pool.

10. The method for semi-industrialized artificial batch production of 1 cm crayfish seedlings as claimed in claim 8, characterized in that: The specific operation method for driving out and collectively capturing the in vitro crayfish is as follows: the in vitro crayfish seedlings are driven out of the hatching cage through the mesh pores on the side of the hatching cage to enter the structural frame, one end of the structural frame provided with the mesh is lifted, the crayfish seedlings are driven to one end of the structural frame for collective capture and transferred to a special breeding pond for seedlings for breeding.

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